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Research on image quality assessment (IQA) remains limited mainly due to our incomplete knowledge about human visual perception. Existing IQA algorithms have been designed or trained with insufficient subjective data with a small degree of…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Lucie Lévêque , Ji Yang , Xiaohan Yang , Pengfei Guo , Kenneth Dasalla , Leida Li , Yingying Wu , Hantao Liu

With exponential growth in the use of digital image data, the need for efficient transmission methods has become imperative. Traditional image compression techniques often sacrifice image fidelity for reduced file sizes, challenging…

Image and Video Processing · Electrical Eng. & Systems 2024-10-15 Aryan Kashyap Naveen , Sunil Thunga , Anuhya Murki , Mahati A Kalale , Shriya Anil

This survey aims at reviewing recent computer vision techniques used in the assessment of image aesthetic quality. Image aesthetic assessment aims at computationally distinguishing high-quality photos from low-quality ones based on…

Computer Vision and Pattern Recognition · Computer Science 2017-07-19 Yubin Deng , Chen Change Loy , Xiaoou Tang

With the increasing demand for image-based applications, the efficient and reliable evaluation of image quality has increased in importance. Measuring the image quality is of fundamental importance for numerous image processing…

Multimedia · Computer Science 2014-07-01 Pedram Mohammadi , Abbas Ebrahimi-Moghadam , Shahram Shirani

We propose a compressive sensing algorithm that exploits geometric properties of images to recover images of high quality from few measurements. The image reconstruction is done by iterating the two following steps: 1) estimation of normal…

Computer Vision and Pattern Recognition · Computer Science 2015-06-11 Virginia Estellers , Jean-Philippe Thiran , Xavier Bresson

A large portion of iris images captured in real world scenarios are poor quality due to the uncontrolled environment and the non-cooperative subject. To ensure that the recognition algorithm is not affected by low-quality images,…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Leyuan Wang , Kunbo Zhang , Min Ren , Yunlong Wang , Zhenan Sun

In this work, we propose using a unified representation, termed Factorized Features, for low-level vision tasks, where we test on Single Image Super-Resolution (SISR) and \textbf{Image Compression}. Motivated by the shared principles…

Image and Video Processing · Electrical Eng. & Systems 2025-11-04 Yang-Che Sun , Cheng Yu Yeo , Ernie Chu , Jun-Cheng Chen , Yu-Lun Liu

Image Phase Alignment Super-sampling (ImPASS) is a computational method for combining displaced low-resolution images into a single high-resolution image. The general steps include measuring the relative displacements, up-sampling, aligning…

Optics · Physics 2026-01-09 James N. Caron

An algorithm based on compressive sensing (CS) is proposed for synthetic aperture radar (SAR) imaging of moving targets. The received SAR echo is decomposed into the sum of basis sub-signals, which are generated by discretizing the target…

Information Theory · Computer Science 2011-04-07 Jun Wang , Gang Li , Hao Zhang , Xiqin Wang

Image quality assessment is critical to control and maintain the perceived quality of visual content. Both subjective and objective evaluations can be utilised, however, subjective image quality assessment is currently considered the most…

Image and Video Processing · Electrical Eng. & Systems 2019-12-17 Lucie Lévêque , Soumyabrata Dev , Murhaf Hossari , Yee Hui Lee , Stefan Winkler

Deep learning based image compressed sensing (CS) has achieved great success. However, existing CS systems mainly adopt a fixed measurement matrix to images, ignoring the fact the optimal measurement numbers and bases are different for…

Image and Video Processing · Electrical Eng. & Systems 2023-07-12 Bowen Zhang , Zhijin Qin , Geoffrey Ye Li

Image compression has been investigated as a fundamental research topic for many decades. Recently, deep learning has achieved great success in many computer vision tasks, and is gradually being used in image compression. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2018-04-26 Zhengxue Cheng , Heming Sun , Masaru Takeuchi , Jiro Katto

In this work, we study the power of Saak features as an effort towards interpretable deep learning. Being inspired by the operations of convolutional layers of convolutional neural networks, multi-stage Saak transform was proposed. Based on…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Abinaya Manimaran , Thiyagarajan Ramanathan , Suya You , C-C Jay Kuo

Learning-based image compression methods have recently emerged as promising alternatives to traditional codecs, offering improved rate-distortion performance and perceptual quality. JPEG AI represents the latest standardized framework in…

Image and Video Processing · Electrical Eng. & Systems 2025-04-11 Mohsen Jenadeleh , Jon Sneyers , Panqi Jia , Shima Mohammadi , Joao Ascenso , Dietmar Saupe

An efficient, scalable and robust approach to the handwritten digits recognition problem based on the Saak transform is proposed in this work. First, multi-stage Saak transforms are used to extract a family of joint spatial-spectral…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Yueru Chen , Zhuwei Xu , Shanshan Cai , Yujian Lang , C. -C. Jay Kuo

Precise perception of the environment is essential in highly automated driving systems, which rely on machine learning tasks such as object detection and segmentation. Compression of sensor data is commonly used for data handling, while…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Christian Steinhauser , Philipp Reis , Hubert Padusinski , Jacob Langner , Eric Sax

Single image super-resolution (SISR) algorithms reconstruct high-resolution (HR) images with their low-resolution (LR) counterparts. It is desirable to develop image quality assessment (IQA) methods that can not only evaluate and compare…

Image and Video Processing · Electrical Eng. & Systems 2021-05-18 Wei Zhou , Zhou Wang , Zhibo Chen

The popular softmax loss and its recent extensions have achieved great success in the deep learning-based image classification. However, the data for training image classifiers usually has different quality. Ignoring such problem, the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Weihua Liu , Xiabi Liu , Murong Wang , Ling Ma

Learning-based image compression methods have emerged as state-of-the-art, showcasing higher performance compared to conventional compression solutions. These data-driven approaches aim to learn the parameters of a neural network model…

Multimedia · Computer Science 2024-03-20 Shima Mohammadi , Yaojun Wu , João Ascenso

We describe an image compression method, consisting of a nonlinear analysis transformation, a uniform quantizer, and a nonlinear synthesis transformation. The transforms are constructed in three successive stages of convolutional linear…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Johannes Ballé , Valero Laparra , Eero P. Simoncelli